How severe is CVE-2018-10866?

CVE-2018-10866 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2018-10866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-10866?

CVE-2018-10866 affects Redhat Certification. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-10866?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-10866 published?

CVE-2018-10866 was published on 2021-05-26 and last updated on 2026-06-17.

CVE-2018-10866

CVE-2018-10866 is a critical-severity vulnerability in Redhat Certification with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v2: 6.4
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Redhat Certification
Published: 2021-05-26
Last modified: 2026-06-17

Description

It was discovered that the /configuration view of redhat-certification 7 does not perform an authorization check and it allows an unauthenticated user to remove a "system" file, that is an xml file with host related information, not belonging to him.

Frequently asked questions

What is CVE-2018-10866?: It was discovered that the /configuration view of redhat-certification 7 does not perform an authorization check and it allows an unauthenticated user to remove a "system" file, that is an xml file with host related information, not belonging to him.
How severe is CVE-2018-10866?: CVE-2018-10866 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2018-10866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-10866?: CVE-2018-10866 affects Redhat Certification. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-10866?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-10866 published?: CVE-2018-10866 was published on 2021-05-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:redhat:certification:7.0:*:*:*:*:*:*:*

More vulnerabilities in Redhat Certification

CVE-2018-10870 — Critical (CVSS 9.8): redhat-certification does not properly sanitize paths in rhcertStore.py:__saveResultsFile. A remote attacker could use…
CVE-2018-10867 — Critical (CVSS 9.1): Files are accessible without restrictions from the /update/results page of redhat-certification 7 package, allowing an…
CVE-2018-10868 — High (CVSS 7.5): redhat-certification 7 does not properly restrict the number of recursive definitions of entities in XML documents,…
CVE-2018-10865 — High (CVSS 7.5): It was discovered that the /configuration view of redhat-certification 7 does not perform an authorization check and it…
CVE-2018-10863 — High (CVSS 7.5): It was discovered that redhat-certification 7 is not properly configured and it lists all files and directories in the…
CVE-2018-10869 — High (CVSS 7.5): redhat-certification does not properly restrict files that can be download through the /download page. A remote…

All CVEs affecting Redhat Certification →

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